Abstract: An image display device has a light source; a power supply section that supplies power to a light source; a cooling fan that cools the light source; a input section; and a control section that controls the cooling fan and the power supply section. If a first lighting mode in which a power value supplied to the light source is a first setting value is designated through the input section, the control section causes the power supply section to supply power that corresponds to the first setting value to the light source and causes the cooling fan to operate.

Abstract: In 3D display, when double the frequency of the input clock exceeds the maximum rate of transmission to cinema display circuit 104, the multiply ratio of the clock is lowered from 2× multiplication and the output horizontal total clock number is reduced accordingly.

Abstract: A reference luminescence amount-acquiring unit of a display device obtains reference brightness corresponding to a BL drive value detected by a drive value-detecting unit and a temperature detected by a temperature-detecting unit. A deterioration-detecting unit calculates an initial status value based on a ratio of reference brightness obtained based on a temperature and a BL drive value in an initial status and brightness in the initial status detected by a luminescence amount-detecting unit, and stores the initial status value. The deterioration-detecting unit further calculates a current status value based on a ratio of reference brightness obtained based on a current temperature and a current BL drive value and current brightness detected by the luminescence amount-detecting unit, compares the initial status value with the current status value, and determines whether calibration is required.

Abstract: A projector includes an illumination optical system, an image formation element that spatially modulates light from the illumination optical system, and a projection lens that projects the spatially modulated light. The illumination optical system includes a light source that emits light of a first wavelength, a fluorophore unit including a reflection region reflecting the light of the first wavelength and a fluorophore region including a fluorophore emitting fluorescent light of a wavelength that differs from the first wavelength by irradiation of the light of the first wavelength, an optical element reflecting the light of the first wavelength, and a quarter-wave plate provided on a light path between the optical element and the fluorophore unit.

Abstract: There is provided a projection-type display apparatus which solves the problem that when an amount of electric power applied to light sources is adjusted, the amount of electric power involved in the cooling of LEDs becomes greater than necessary. Coolers (107R, 107G, 107B) cool light sources (103R, 103G, 103B). Light sensor (111) detects the brightness of a surrounding area. Light case temperature detectors (112R, 112G, 112B) detect case temperatures which are the temperatures of cases of light sources (103R, 103G, 103B). Light source forward voltage detectors (113R, 113G, 113B) detect forward voltages of light sources (103R, 103G, 103B). Light source forward current detectors (114R, 114G, 114B) detect forward currents of light sources (103R, 103G, 103B). Adjuster (117) adjusts the amount of cooling power of coolers (107R, 107G, 107B) based on the forward voltage, the forward current, and the case temperatures.

Abstract: A liquid crystal monitor includes a first voltage conversion circuit (e.g. a DC/DC converter), which converts an external DC voltage into a first internal DC voltage supplied to CPU circuitry, and a second voltage conversion circuit, which converts the external DC voltage into a second internal DC voltage for driving a backlight of a liquid crystal panel. The external DC voltage is set proximate to a center value between the first internal DC voltage and the second internal DC voltage. This allows the liquid crystal monitor to be equipped with a battery unit producing a single external DC voltage, thus reducing weight compared to a conventional liquid crystal monitor.

Abstract: Provided are a frame unit having a substantially rectangular shape, wherein a rear side of the frame unit is detachable attached to an outer edge of a display device; light shielding plates arranged on an upper side and right and left sides of the frame unit; and a measurement unit provided at a front side of each light shielding plate, where the measurement unit measures a display state of the display device and outputs a measurement result to the display device.

Abstract: A correction device for a display device includes a detection unit which detects the measured XYZ values of a CIE1931 color system; a first conversion unit which calculates the measured X10Y10Z10 values of a CIE1964 color system based on the measured XYZ values with reference to the characteristics of the display device; a second conversion unit which calculates the target X10Y10Z10 values of the CIE1964 color system based on the target XYZ values representing tristimulus values of a target color in the CIE1931 color system; a correction value calculation unit which compares the measured X10Y10Z10 values with the target X10Y10Z10 values so as to produce a correction value which allows those values to match each other; a correction value calibration unit which rewrites the correction value with a correction value of the CIE1931 color system; and a compensation unit which performs color correction on the display device.

Abstract: A projection display apparatus includes: a display element that displays an image; a lamp that illuminates the display element to cause the display element to emit an image light; a variable light intensity element that allows the light emitted from the lamp to pass therethrough, the intensity of light passing through the variable light intensity element being variable; and a light intensity controller that determines whether the display element is at an image mute state in which a full-black image is displayed, or at a normal lighting state other than the image mute state, and when the display element is at the image mute state, reduces the amount of power supplied to the lamp to a level that is lower than that of the normal lighting state to decrease the intensity of light emitted from the lamp, and also decreases the intensity of light that passes through the variable light intensity element.

Abstract: A display apparatus constitutes a display system that displays an image using the display apparatus and at least one other display apparatus. The display apparatus includes: a display unit that displays an image; a detection unit that detects a position selected on the display unit by a user to obtain positional information; a communication unit that communicates with a control apparatus and with the at least one apparatus; and a control unit that performs control to communicate with the control apparatus and to communicate with the at least one display apparatus, via the communication unit. The control unit outputs the positional information and identification information of the display apparatus in the display system, via the communication unit when the user selects a position on the display unit.

Abstract: A display device includes: a display unit that displays an image; and a handle provided on a back surface of the display unit. The handle includes: a handle body that is manually grasped; and a fixing part that is detachably fixed to a back surface of the display unit. The fixing part includes: a first fixing mechanism that fixes the handle in a state in which the handle body protrudes outward in a depth direction from the back surface of the display unit, and a gap between the handle body and the display unit in the depth direction is enlarged; and a second fixing mechanism that fixes the handle in a state in which the gap between the handle body and the display unit in the depth direction is reduced relative to a state of the handle being fixed using the first fixing mechanism.

Abstract: The projector comprises: at least one light source; a light separation unit separating light emitted from the light source into a first and second lights in different wavelength bands; a TIR prism through which the first and second lights pass; an optical modulating element irradiated with and modulating the first and second lights to emit the modulated first and second lights toward the TIR prism; a projection lens expanding and projecting the light which is modulated by the optical modulating element and passes the TIR prism; a rotating prism which is rotatably arranged in the light path between the light separation unit and the TIR prism and emits, from different positions in accordance with rotation, the first and second lights emitted from the light separation unit; and a control unit which, when the image signals representing a first and second images are supplied, causes the optical modulating element to perform modulation according to the image signal of the first image with regard to the area irradia

Abstract: A display apparatus includes a detector configured to detect an infrared ray emitted from a human body; a state signal generator configured to generate a state signal including at least one of a first state signal component indicating that the human body is approaching the detector and a second state signal component indicating that the human body is leaving from the detector in response to an intensity variance of the infrared ray detected with the detector; and a controller configured to start controlling an external device upon detecting the first state signal component from the state signal generated by the state signal generator but to stop controlling the external device upon detecting the second state signal component from the state signal.

Abstract: An identifier control device includes: a cumulative transmission and reception initiation control unit that instructs a plurality of controlled devices, via a network, to initiate cumulative transmission and reception; a distance determination command transmission unit that transmits to each of the plurality of controlled devices via the network a distance determination command; a distance recognition unit that determines the distances on the network with respect to the respective plurality of controlled devices, based on response signals transmitted by the respective plurality of controlled devices after the accumulation time has elapsed from when each of the plurality of controlled devices receives the distance determination command; and an identifier control unit that sets to each of the plurality of controlled devices, via the network, an identifier for each of the plurality of controlled devices determined based on the determined distances on the network.

Abstract: Provided is a light source cooling device that includes: a case in which exhaust port (112) is formed; ventilation device (102) that has a blowing port blowing air and that is located in the case; flow path component (301); light source (101); and holding part (121) disposed in an inner surface of case (108). Flow path component (301) constitutes flow path (403) for guiding air from ventilation device (102) to exhaust port (112) in the case. Light source (101) is located in flow path (403). Flow path component (301) includes a first opening and a second opening. The first opening is connected to exhaust port (112), while the second opening is connected to the blowing port of ventilation device (102). An outer surface of flow path component (301) is held by holding part (121).

Abstract: A liquid-crystal projector includes: liquid-crystal panel sections a first illumination section including a red light source, red light emitted from the red light source being applied to a liquid-crystal panel section; a second illumination section including a green light source, a blue light source and a polarizing beam splitter that splits green light emitted from the green light source into p-polarized light and s-polarized light, the green s-polarized light being applied to a liquid-crystal panel section, the green p-polarized light and blue light being applied to a liquid-crystal panel section on the same optical path; a cross dichroic mirror that combines images displayed on liquid-crystal panel sections; a projection lens that projects the combined image; and a control unit that controls on/off states of the red light source, the green light source and the blue light source based on an input video signal to display respective images on the liquid-crystal panel sections.

Abstract: An illumination optical system includes: a light source that generates excitation light; a fluorescent body that generates fluorescent light by irradiation with the excitation light and that is disposed in a region wider than the irradiation spot of the excitation light; a plate in which the fluorescent body is disposed; and a driving mechanism that moves the plate so that the irradiation spot of the excitation light can intermittently move over the fluorescent body.

Abstract: In a display device, a signal level detection circuit detects RGB signal levels for each pixel from an image signal, and then a control circuit detects an area using a gray scale of a single color based on RGB signal levels for each pixel. A first color conversion circuit carries out an image correction on an image signal while a second color conversion circuit carries out another image correction-on an image signal. An H/V position control circuit extracts an image signal of an area detected by the control circuit from an image signal subjected to the image correction of the second color conversion circuit. An image superposition circuit superposes the image signal extracted by the H/V position control circuit with the image signal subjected to the image correction of the first color conversion circuit, thus displaying the superposed image signal on a display.